Home / 12,236.58-18,354.48-3,916.50

Finding the Fourth Proportional to 12,236.58, 18,354.48 and 3,916.50

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Solution

The fourth proportional to 12,236.58, 18,354.48 and 3,916.50 is: 5,874.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,236.58 : 18,354.48 = 3,916.50 : x
  2. Step 2: Convert to fraction form
    12,236.58/18,354.48 = 3,916.50/x
  3. Step 3: Cross multiply
    12,236.58x = 18,354.48 × 3,916.50
  4. Step 4: Simplify right side
    12,236.58x = 71,885,320.92
  5. Step 5: Solve for x
    x = 71,885,320.92/12,236.58
  6. Step 6: Final answer
    x = 5,874.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.